package com.bootcamp.s2_0922.ds._0930;

import java.util.ArrayDeque;
import java.util.Queue;

/**
 * @program: myClassCode
 * @description:
 * @author: Keyu Li
 * @create: 2021-09-30 11:00
 **/

public class Demo2_Queue {
    public static void main(String[] args) {
        Queue<String> queue = new ArrayDeque<>();
        queue.add("ls");
        queue.add(null);
    }
}
